Head down means that is is in a 'Ceph' position and in correct position for birth(head in pelvis, feet in your ribs). At 35 weeks that is a good way to be! Head up means a breech presentation(little bum coming first!). He may have dropped but it is whether he is engaged or not. I would imagine since the Doctor didn't mention anything that the head is still free. If he does engage believe me you will tell the difference in your pelvis!!!